{"id":1280,"date":"2017-12-29T17:10:05","date_gmt":"2017-12-29T09:10:05","guid":{"rendered":"http:\/\/www.yeetrack.com\/?p=1280"},"modified":"2017-12-29T17:26:52","modified_gmt":"2017-12-29T09:26:52","slug":"jmeter-beanshell-preprocessor%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.yeetrack.com\/?p=1280","title":{"rendered":"jmeter BeanShell PreProcessor\u7ec4\u4ef6"},"content":{"rendered":"

jmeter\u662f\u4e2a\u5f88\u5c0f\u5de7\u7684\u538b\u6d4b\u5de5\u5177\uff0c\u4e00\u822c\u7684\u538b\u6d4b\u573a\u666f\u90fd\u80fd\u641e\u5b9a\u3002\u4f46\u662f\u538b\u6d4b\u65f6\uff0c\u53ef\u80fd\u67d0\u4e9b\u63a5\u53e3\u9700\u8981\u7b7e\u540d\u3001\u9274\u6743\u3002\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u4e00\u4e9b\u52a0\u5bc6\u7b97\u6cd5\u4e86\uff0cjmeter\u867d\u7136\u4e5f\u81ea\u5e26\u4e86\u4e00\u4e9b\u51fd\u6570\uff0c\u4f46\u662f\u6ca1\u6709\u52a0\u89e3\u5bc6\u51fd\u6570\uff0c\u4e0d\u8fc7jmeter\u5374\u63d0\u4f9b\u4e86\u7528\u6237\u81ea\u5b9a\u4e49\u811a\u672c\u7684\u65b9\u6cd5\uff0c\u9664\u4e86\u81ea\u5df1\u5199java request\u5916\uff0c\u8fd8\u6709\u53e6\u4e00\u4e2d\u66f4\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u5c31\u662fbean shell\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528BeanShell PreProcessor\u8fd9\u4e2a\u524d\u7f6e\u5904\u7406\u5668\u3002
\n<\/p>\n

    \n
  1. \u4ec0\u4e48\u662fbean shell
    \nBeanShell\u662f\u4e00\u4e2a\u5c0f\u578b\u5d4c\u5165\u5f0fJava\u6e90\u4ee3\u7801\u89e3\u91ca\u5668\uff0c\u5177\u6709\u5bf9\u8c61\u811a\u672c\u8bed\u8a00\u7279\u6027\uff0c\u80fd\u591f\u52a8\u6001\u5730\u6267\u884c\u6807\u51c6JAVA\u8bed\u6cd5\uff0c\u5e76\u5229\u7528\u5728JavaScript\u548cPerl\u4e2d\u5e38\u89c1\u7684\u7684\u677e\u6563\u7c7b\u578b\u3001\u547d\u4ee4\u3001\u95ed\u5305\u7b49\u901a\u7528\u811a\u672c\u6765\u5bf9\u5176\u8fdb\u884c\u62d3\u5c55\u3002BeanShell\u4e0d\u4ec5\u4ec5\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u5176\u5185\u90e8\u7684\u811a\u672c\u6765\u5904\u7406Java\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd8\u53ef\u4ee5\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u52a8\u6001\u6267\u884c\u4f60java\u5e94\u7528\u7a0b\u5e8f\u6267\u884cjava\u4ee3\u7801\u3002\u56e0\u4e3aBeanShell\u662f\u7528java\u5199\u7684\uff0c\u8fd0\u884c\u5728\u540c\u4e00\u4e2a\u865a\u62df\u673a\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u56e0\u6b64\u53ef\u4ee5\u81ea\u7531\u5730\u5f15\u7528\u5bf9\u8c61\u811a\u672c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n
  2. \n

    jmeter\u4e2d\u7684BeanShell PreProcessor\u7ec4\u4ef6
    \n\u4f7f\u7528BeanShell PreProcessor\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u5199\u81ea\u5b9a\u4e49\u7684java\u4ee3\u7801\uff0c\u5e76\u4e14\u628a\u4ee3\u7801\u4e2d\u7684\u53d8\u91cf\u4f20\u9012\u7ed9jmeter\u4f7f\u7528\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u80fd\u5728\u538b\u6d4b\u8bf7\u6c42\u4e4b\u524d\uff0c\u521d\u59cb\u5316\u4e00\u4e9b\u53d8\u91cf\uff0c\u5982\u52a0\u89e3\u5bc6\u7b49\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u5728jmeter\u4e2d\u6dfb\u52a0BeanShell PreProcessor\u7ec4\u4ef6\u65b9\u6cd5\u5982\u4e0b\uff1a
    \n\"\"<\/p>\n

    \u7ec4\u4ef6\u754c\u9762\u5982\u4e0b\uff1a
    \n\"\"<\/p>\n

      \n
    1. \u53c2\u6570\u63cf\u8ff0\u5982\u4e0b\uff1a
      \n\n\n\n\n\n\n\n\n\n
      \u5c5e\u6027<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
      \u540d\u79f0<\/td>\n\u8be5\u5143\u4ef6\u7684\u63cf\u8ff0\u6027\u540d\u79f0\uff0c\u7528\u4e8e\u5728\u6d4b\u8bd5\u6811\u79cd\u6807\u8bc6\u5143\u4ef6<\/td>\n<\/tr>\n
      Reset bsh.Interpreter before each call<\/td>\n\u5982\u679c\u8bbe\u7f6e\u8be5\u9879\uff0c\u90a3\u4e48\u5c31\u4f1a\u4e3a\u6bcf\u4e2a\u91c7\u6837\u5668\u91cd\u65b0\u521b\u5efa\u89e3\u91ca\u5668\u3002<\/td>\n<\/tr>\n
      Parameters to be passed to Bean Shell<\/td>\n\u4f20\u9012\u7ed9BeanShell\u811a\u672c\u7684\u53c2\u6570\u3002\u53c2\u6570\u5b58\u5728\u4e8e\u5982\u4e0b\u53d8\u91cf\u8868\u4e2d: 1)String Parameters:\u5305\u542b\u6709\u53c2\u6570\u7684\u5b57\u7b26\u4e32\uff0c\u4f5c\u4e3a\u5355\u4e2a\u53d8\u91cf\u5b58\u5728\uff1b2)String []bsh.args:\u5305\u542b\u6709\u53c2\u6570\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u4ee5\u7a7a\u683c\u4f5c\u4e3a\u95f4\u9694<\/td>\n<\/tr>\n
      Script file<\/td>\n\u4e00\u4e2a\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u6709\u5f85\u8fd0\u884c\u7684BeanShell\u811a\u672c<\/td>\n<\/tr>\n
      Script<\/td>\nBeanShell\u811a\u672c\u3002\u8fd4\u56de\u503c\u5c06\u88ab\u5ffd\u7565\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n
    2. \n

      Bean Shell\u5e38\u7528\u5185\u7f6e\u53d8\u91cf
      \nJMeter\u5728\u5b83\u7684BeanShell\u4e2d\u5185\u7f6e\u4e86\u53d8\u91cf\uff0c\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u53d8\u91cf\u4e0eJMeter\u8fdb\u884c\u4ea4\u4e92\uff0c\u5176\u4e2d\u4e3b\u8981\u7684\u53d8\u91cf\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b:<\/p>\n<\/li>\n

      + log\uff1a\u7528\u6765\u8bb0\u5f55\u65e5\u5fd7\u6587\u4ef6\uff0c\u5199\u5165\u5230jmeber.log\u6587\u4ef6\uff0c\u4f7f\u7528\u65b9\u6cd5\uff1alog.info(\u201cThis is log info!\u201d);
      \n+ ctx\uff08JmeterContext\uff09\u901a\u8fc7\u5b83\u6765\u8bbf\u95eecontext\uff0c\u4f7f\u7528\u65b9\u6cd5\u53ef\u53c2\u8003\uff1aorg.apache.jmeter.threads.JMeterContext\u3002
      \n+ vars - (JMeterVariables)\uff1a\u64cd\u4f5cjmeter\u53d8\u91cf\uff0c\u63d0\u4f9b\u8bfb\u53d6\/\u5199\u5165\u8bbf\u95ee\u53d8\u91cf\u7684\u65b9\u6cd5\u3002\u8fd9\u4e2a\u53d8\u91cf\u5b9e\u9645\u5f15\u7528\u4e86JMeter\u7ebf\u7a0b\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u5bb9\u5668\uff08\u672c\u8d28\u4e0a\u662fMap\uff09\uff0c\u5b83\u662f\u6d4b\u8bd5\u7528\u4f8b\u4e0eBeanShell\u4ea4\u4e92\u7684\u6865\u6881\uff0c\u5e38\u7528\u65b9\u6cd5\uff1a
      \n + vars.get(String key)\uff1a\u4ecejmeter\u4e2d\u83b7\u5f97\u53d8\u91cf\u503c
      \n + vars.put(String key\uff0cString value)\uff1a\u6570\u636e\u5b58\u5230jmeter\u53d8\u91cf\u4e2d
      \n + vars.putObject(\"OBJ1\",new Object());
      \n + \u66f4\u591a\u65b9\u6cd5\u53ef\u53c2\u8003\uff1aorg.apache.jmeter.threads.JMeterVariables
      \n + props - (JMeterProperties - class Java.util.Properties)\uff1a
      \n \u64cd\u4f5cjmeter\u5c5e\u6027\uff0c\u8be5\u53d8\u91cf\u5f15\u7528\u4e86JMeter\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u53ef\u4ee5\u83b7\u53d6Jmeter\u7684\u5c5e\u6027\uff0c\u5b83\u7684\u4f7f\u7528\u65b9\u6cd5\u4e0evars\u7c7b\u4f3c\uff0c\u4f46\u662f\u53ea\u80fdput\u8fdb\u53bbString\u7c7b\u578b\u7684\u503c\uff0c\u800c\u4e0d\u80fd\u662f\u4e00\u4e2a\u5bf9\u8c61\u3002\u5bf9\u5e94\u4e8ejava.util.Properties\u3002
      \n + props.get(\"START.HMS\");\u3000\u3000\u6ce8\uff1aSTART.HMS\u4e3a\u5c5e\u6027\u540d\uff0c\u5728\u6587\u4ef6jmeter.properties\u4e2d\u5b9a\u4e49
      \n + props.put(\"PROP1\",\"1234\");
      \n + prev - (SampleResult)\uff1a\u83b7\u53d6\u524d\u9762\u7684sample\u91c7\u6837\u7684\u7ed3\u679c\uff0c\u5e38\u7528\u65b9\u6cd5\uff1a
      \n + getResponseDataAsString()\uff1a\u83b7\u53d6\u54cd\u5e94\u4fe1\u606f
      \n + getResponseCode() \uff1a\u83b7\u53d6\u54cd\u5e94code
      \n + \u66f4\u591a\u65b9\u6cd5\u53ef\u53c2\u8003\uff1aorg.apache.jmeter.samplers.SampleResult
      \n + sampler - (Sampler)\uff1agives access to the current sampler \u8bbf\u95ee\u5f53\u524d\u91c7\u6837<\/p>\n

      \u7b80\u5355\u5199\u4e86\u4e2amd5\u7684\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5982\u4e0b\uff1a<\/p>\n

          import java.security.MessageDigest;\n\n    public static String bytesToHex(byte[] bytes) {  \n        StringBuffer hexStr = new StringBuffer();  \n         int num;  \n         for (int i = 0; i < bytes.length; i++) {  \n            num = bytes[i];  \n            if(num < 0) {  \n                num += 256;  \n            }  \n            if(num < 16){  \n                hexStr.append(\"0\");  \n            }  \n          hexStr.append(Integer.toHexString(num));  \n         }  \n         return hexStr.toString().toUpperCase();  \n    }  \n    MessageDigest messageDigest = MessageDigest.getInstance(\"MD5\");\n    String source = vars.get(\"username\");\n    messageDigest.update(source.getBytes());\n    String sign = bytesToHex(messageDigest.digest());\n    vars.put(\"sign\", sign);\n<\/code><\/pre>\n
      \u8fd9\u6837\u5c31\u628amd5\u7684\u7ed3\u679c\u5b58\u653e\u5728\u4e86sign\u53d8\u91cf\u4e2d\uff0c\u5728jmeter\u4e2d\u53ef\u4ee5\u4f7f\u7528${sign}<\/code>\u6765\u83b7\u53d6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      jmeter\u662f\u4e2a\u5f88\u5c0f\u5de7\u7684\u538b\u6d4b\u5de5\u5177\uff0c\u4e00\u822c\u7684\u538b\u6d4b\u573a\u666f\u90fd\u80fd\u641e\u5b9a\u3002\u4f46\u662f\u538b\u6d4b\u65f6\uff0c\u53ef\u80fd\u67d0\u4e9b\u63a5\u53e3\u9700\u8981\u7b7e\u540d\u3001\u9274\u6743\u3002\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u4e00\u4e9b\u52a0\u5bc6\u7b97\u6cd5\u4e86\uff0cjmeter\u867d\u7136\u4e5f\u81ea\u5e26\u4e86\u4e00\u4e9b\u51fd\u6570\uff0c\u4f46\u662f\u6ca1\u6709\u52a0\u89e3\u5bc6\u51fd\u6570\uff0c\u4e0d\u8fc7jmeter\u5374\u63d0...<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[34],"tags":[8,48],"class_list":["post-1280","post","type-post","status-publish","format-standard","hentry","category-software","tag-java","tag-jmeter"],"views":8842,"_links":{"self":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1280"}],"version-history":[{"count":2,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1280\/revisions"}],"predecessor-version":[{"id":1282,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1280\/revisions\/1282"}],"wp:attachment":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}